Locks and mountings therefor



United States Patent On ice 3,353,433 Patented Dec. 19, 1967 3,358,483 LOCKS AND MOUNTINGS THEREFOR John F. Wellekens, New York, N.Y., assignor to Hotel 7 Security Systems Corporation, New York, N.Y., a corporation of New York Filed Oct. 5, 1965, Ser. No. 493,195 10 Claims. (Cl. 70-370) ABSTRACT OF THE DISCLOSURE A lock of the cylinder type and a mounting arrangement therefor, including a bushing that is non-rotatively mounted in a mounting base such as a door. An apertured collar fits around the bushing at the back of the door and is clamped against the back of the door by a nut adjustably arranged on the bushing. Mounted behind the nut by screws which enter the nut, is a lock housing, said screws engaging the collar. A latch plate is rotatively confined between the lock housing and the nut and said plate is coupled to lock mechanism contained in the lock housing. A plug is contained within the bushing forwardly of the lock mechanism, or in lieu of said plug a second lock mechanism can be provided within the bushing and in such case a key contoured to operate both lock mechanisms will be used.

This invention relates to locks and to mounting means therefor, and more particularly to a type of lock capable of use on the doors of vending machines, on the doors of appliance cabinets an on many other enclosures or the like.

- One of the objects of the invention is to provide a lock of this character which can be easily mounted; which can have its combination readily changed whenever required to thereby adapt the lock to a new key of a different contour. This enables the lock to have its combination quickly changed whenever it is ascertained that pilfering has taken place or is likely to occur because of the possession of a key which fits the lock, by an unauthorized person.

It is an object of the invention to provide a lock which can be employed for the rotational movement of a latch and which latch is thereby rendered applicable for connection to bolt or other linkage for eflectively locking the door.

More particularly, the invention contemplates the provision of a lock having a mounting element or bushing non-rotatively mounted in a mounting base such as a door; with an apertured collar fitting around the bushing at the back of the door and clamped against the back of the door by a nut adjustably arranged on the bushing; with a lock housing mounted behind the nut by screws entering the nut and engaging the collar; with a latch plate rotatably confined between the lock housing and the nut and with said plate coupled to lock mechanism contained in the lock housing.

With these and other objects to be hereinafter set forth in view, I have devised the arrangement of parts to be described and more particularly pointed out in the claims appended hereto.

In the accompanying drawings, in which an illustrative embodiment of the invention is disclosed,

FIG. 1 is an elevational view of a lock constructed in accordance with the invention;

FIG. 2 is a longitudinal sectional view of the same;

FIG. 3 is a face view of the positioning disk or collar;

FIG. 4 is a sectional View through the collar, taken on the line 4-4 of FIG. '3

' FIG. 5 is' an end view of the lock, looking at the rear end of the same;

FIG. 6 is a view on a smaller scale of the lock as viewed at right angles to FIG. 1;

FIG. 7 is an exploded view of the lock parts, with some of the same being shown in section or partly in section;

FIG. 8 is an end view of the mounting bushing as seen from the rear end of the same;

FIG. 9 is a view taken along the line 9-9 of FIG. 7, looking in the direction of the arrows; and

FIG. 10 is a face view of the rotary latch plate.

The improved "lock is adapted to be mounted in a suitable mounting base such as a door or other part of a structure to be locked and protected, and a portion of the mounting base or other element is shown at 1 in the drawings.

Fitted through an aperture 2 in the door 1 is a mounting bushing shown at 3. Said bus-hing is provided at its forward end with an annular flange of facia 4 which, when the bushing is fitted through the aperture 2, rests against the marginal edge area of the opening in the door. A friction washer 5 may, if desired, be used between the flange or facia '4 and the surface of the door.

The body of the bushing 3 is externally threaded as shown at 6 in FIG. 7 and said body is flattened as shown at 7, at diametrically opposite points. The opening 2 in the door through which the bushing 3 extends is nonround and it thus conforms in shape to the body of the bushing. That is to say, the opening 2 is similar in shape to the opening shown at 8 (FIG. 3) that is therein dis closed as extending through a positioning collar or disk 9.

The positioning collar or disk 9, shown in detail in FIGS. 3 and 4, is in the form of a ring, having a central opening 8 which fits around the body of the bushing 3 and conforms in shape thereto so that said collar cannot turn or rotatively move relatively to the bushing 3. Near its peripheral edge the collar 9 is formed with an annular line of holes 10 adapted for the selective reception of one or both of the fastening screws shown at 11.

The positioning collar is adapted to be clampingly maintained against the inner face of the door or other element 1 by means of a nut or similar element 12 which is internally threaded as at 13 so that it is threadably adjustable on the external threads 6 of the bushing 3 and will tightly clamp the positioning collar 9 between it and the rear face of the door. The nut 12 can be adjusted along the bushing 3 to fit doors of difference in thickness.

The nut 12 is formed with a pair of diametricallyopposite, laterally-extending lugs 14 as clearly shown in FIG. 9 and such lugs are provided with holes 15 extending through them and which holes are internally threaded as shown at 16. Located behind the nut 12 is a sleeve 17 of cylindrical, tubular form and which constitutes a barrel or housing for the lock, and contains the lock mechanism 18.

The locking mechanism 18 is preferably, although not necessarily of a construction similar to that disclosed in my copending application for patent Ser. No. 355,011, filed Mar. 26, 1964, now Patent No. 3,260,080. Such type of locking mechanism is one in which the combination can be speedily and easily changed whenever it is desired to enable the lock to be operated by a selected key. Thus, a feature of the present construction resides in the fact that when the possibility exists that the lock can be opened by a person or persons having unauthorized possession of a suitable key, the combination of the lock can be changed and this without difficuty or extensive effort so that a new and different key will be required in order to open the lock.

In a lock of this kind a plurality of wafer-like diskshaped elements are employed, such elements being provided in their peripheral edge with a plurality of notches.

of a specific key. Thus, all that the lock requires for the setting of a desired combination, is the manual rotational 3 adjustment of the several elements to selected positions according to the contour of the key to be employed. This can be done by finger operation and without the use of tools while the lock assembly is out of the housing 17. The structural details of a lock of this kind are more specifically shown and described in my said copending application Ser. No. 355,011, now Patent No. 3,260,080.

The sleeve or lock housing 17 is provided with a pair of diametrically-opposite, laterally projecting lugs 19, each of which has a hole 20 extending through it for the passage of the fastening screws 11. When the housing 17 is placed behind the nut 12, the lugs on the nut and those on the housing 17 are aligned so that the screws 11 can pass through both pairs of lugs as is clearly shown in FIG. 2.

Confined between the forward end of the lock housing 17 and the rear of the nut 12 is a rotative latch 21 in the form of an elongated plate, clearly shown in FIGS. 7 and 10. The latch plate 21 has a central disk portion 22 provided with a hole 23 for permitting the passage of the shank of a suitably contoured key for the entry of the key into the lock mechanism 18 to operate the same. Provided on the rear face of the latch 21 are pins 24 which engage in recesses 25 in a part of the lock mechanism 18 which turns when a key is inserted and manually turned. When this takes place, the latch 21, being thus coupled to the rotating lock mechanism will also turn and will actuate any bolts, linkage or locking means that is coupled to the latch 21. The latch 21 includes a pair of integral laterally projecting arms 26 having near their extremities, holes 27 by which one or both of these arms can be connected to linkage, bolts or other locking mechanism according to each particular installation arrangement.

The fastening screws 11 extend through the holes 29 in the lugs 19 of the lock housing 17 and engage with the threaded apertures 15 of the nut 12, thus attaching the sleeve 17 behind the nut 12, with the latch 21 rotatably confined between the forward end of the housing 17 and the rear end of the nut 12. The arms 26 of the latch extend laterally from the lock between the lugs 14, 19 and have a limited rotary movement, or are oscillated when a key is turned in the loc Pins 30 project from the front face of the latch and these pins are so spaced that they are disposed along the side of the lock housing 17 and resist any tendency of the latch to shift laterally under strains. The latch may use other means for resisting any lateral movement.

Located within the bushing 3 is a plug or insert 31,

secured in the bushing in any suitable manner and said plug has an axial key slot 32 through which a suitably contoured key may be inserted to reach and engage the locking mechansm 18 to operate the same and upon turning, to rotatively move the latch 21. Instead of a plug as shown, the interior of the bushing 3 can contain a locking mechanism such as that shown at 18. In such case the two locking mechanisms, arranged one behind the other, or in tandem, can be used. A suitable key of sufiicient length to operate the tumblers in :both of the locks, will then be required to produce the required tuming movement of the latch 21.

From the foregoing, the installation and operation of Q the lock will be apparent. In setting the lock in place, the

bushing 3 is inserted through the hole 2 in the door or other mounting base 1 and the positioning collar is slid onto the part of the bushing located at the back of the door. The nut 12 is then threadably fitted on the bushing and is tightened firmly thereon until the positioning collar is securely clamped between the nut 12 and the back of the door. The holes 10, or at least one of them should be aligned with one or the other of the holes in the nut, according to the positon desired for the latch 21 in order to properly engage with the operating linkage or bolt mechanism of the door, and which the latch is to operate.

The latch, fitted behind the nut 12, and the housing 17 carrying the locking mechanism 18, is set in position by the tightening of the screws 11, one or the other or both of which will extend into one or two of the holes 10 in the collar 9.

When it is desired to change the combination of the locking mechanism 18, the screws 11 are removed, this permitting the housing 17 to be drawn away until the contained lock mechanism is accessible, and such mechanism 18 is then slipped out of the housing 17; adjusted for the accommodation of another key and placed back into the housing 17 which is then attached as before at the back of the nut 12 by means of the screws 11.

As is herein mentioned, the plug 31 as shown in FIG. 2 may be supplanted by a locking mechanism which can consist of a plurality of tumblers or wards 36 operative to permit only a key of a specific contour. If such an arrangement is used, as indicated for example in dotted lines in FIG. 2, there will result an arrangement of two locks or separate locking mechanisms disposed in tandem or in axial alignment. These will be required to accept a relatively lengthy key entering into both locking mechanisms and suitably contoured for acceptance by both. This enables both mechanisms 18 and 36 to have their combinations readily changed whenever required and to also have the capacity for a vast number of combination changes.

The lock may be made small and compact; its mounting is simple, and the combination easily changed. The rotative movement of the latch and its location permits it to be coupled to various linkages and bolt arrangements and numerous other features are present in the lock which will be apparent to those skilled in this art.

What I claim is:

1. A lock comprising, a mounting base provided with a non-round aperture, a bushing extending through said aperture and held against rotative movement therein, an apertured collar fitted around the bushing, a nut threaded on the bushing and acting to clamp the collar between it and the back of the mounting base, a lock housing located behind the nut, fastening elements extending through the housing and through the nut and entering at least one aperture in the collar, the lock housing containing a locking mechanism including a latch-actuating element, and a rotary latch coupled to said latch-actuating element and located between the back of the nut and the front of the lock housing.

2. A lock as defined by claim 1, wherein the collar has a central, non-round aperture, and the bushing has a cross-sectional shape conforming thereto to prevent rotative movement of the collar relatively to the bushing, the collar having a plurality of holes adjacent to its periphery with at least one of the fastening elements entering one of said holes.

3. A lock comprising, a mounting base provided with a non-round aperture, a bushing conforming in shape to said aperture and extending therethrough, said bushing being externally threaded, a collar fitted around the bushing and maintained against'rotative movement relatively to the same, a nut threadably mounted on the bushing and adjustable thereon to clamp the collar between it and a face of the mounting base, the collar being provided with a plurality of holes adjacent to its periphery, a cylindrical lock housing located at the rear of the nut, said housing and the nut having apertured lugs, fastening elements extending through the lugs and selectively entering some of the holes in the collar to thereby position the lock, lock mechanism contained in the housing, said mechanism including an element rotatively moved by the actuation of the lock mechanism by a key inserted in the same, and a rotative latch member disposed between the lock housing and the nut and in engagement with the rotative element of the lock mechanism.

4. A lock as defined by claim 3, wherein the latch member includes arms projecting laterally of the lock housing, the latch member including pins projecting from one of its faces to engage with the rotatable element of the lock and cause turning of the latch when said element is rotated.

5. A lock as defined by claim 3, and including a plug fitted within the bushing and centrally apertured to define a key slot through which a key is entered to be guided into the lock mechanism.

6. A lock having a mounting bushing, a collar arranged around the same, a clamping nut adjustable on the bushing to clamp the collar against a support in which the bushing is mounted, a lock housing located bebind the nut, fastening means attaching the lock housing to the nut, said fastening means engaging and securing the collar to position the lock, lock mechanism in the housing, a rotatable latch located between the housing and the nut, and a coupling between the latch and lock mechanism to cause rotation of the latch when the lock mechanism is key-actuated.

7. In a lock as defined by claim 6, wherein the bushing contains a separate locking mechanism located forwardly of that contained within the lock housing, whereby a key entering through the separate lock mechanism will reach and actuate the locking mechanism contained within the lock housing.

8. A lock comprising, an externally threaded mounting bushing, an apertured collar fitted non-rotatively around the same, a clamping nut threadably mounted on the bushing behind the collar, a lock housing behind the nut, fasteners extending through the lock housing and through the nut for engagement with one or more apertures in the collar to thereby position the lock, a rotative latch located between the lock housing and the nut and a locking mechanism in the lock housing for engaging with the latch to rotate the same when a key is employed to actuate the locking mechanism.

9. A lock having a bushing mounted non-rotatively in a mounting base, a collar fitted around the bushing and clamped against the back of the base, a nut arranged on the bushing for clamping the collar, a lock housing mounted behind the nut, fastening means entering the nut and attaching the lock housing thereto, said fastening means engaging and securing the collar at selected points to position the lock, a rotatable latch plate confined between the lock housing and nut, said latch plate being coupled to lock mechanism contained within the lock housing.

10. A lock comprising, a mounting base such as a door provided with a non-round opening extending through it, a threaded bushing having an external shape corresponding substantially to that of said opening, the bushing extending through the opening and held against rotative movement relatively to the mounting base, a disk forming a collar having a central opening conforming in shape to the bushing and fitted around the same to maintain the disk against rotation, said disk having a row of spaced holes arranged around its central opening, a nut having a central threaded aperture engaging the threads on the bushing and adjustable on the bushing to clamp the disk between it and the rear of the mounting bass, the nut having a pair of apertured, laterally-projecting lugs, a tubular lock housing mounted at the rear of the nut, said housing having a pair of lateral, apertured lugs aligned with those on the nut, screws extending through the aligned lugs, with one or more of said screws entering one or more of the holes in the disk to thereby position the lock, a latch rotatively confined between the forward end of the lock housing and the rear of the nut, key-actuated locking mechanism contained in the lock housing, and coupling means between said lock mechanism and the latch for causing rotative movement of the latch when a key is used to actuate the locking mechanism.

References Qited UNITED STATES PATENTS 1,990,933 2/1935 Falk -364 2,061,978 11/1936 Pentka. 2,437,742 3/1948 Hofmann. 2,922,298 1/ 1960 Wiener 70-364 3,03 8,749 6/1962 Check et al. 70-451 X 3,065,623 11/1962 Regan 70-370 X 3,150,513 9/1964 Wellekens 70-370 FOREIGN PATENTS 897,886 6/1944 France. 1,176,516 8/1964 Germany.

456,685 4/ 1950 Italy.

496,449 7/ 1954 Italy.

MARVIN A. CHAMPION, Primary Examiner. P. TEITELBAUM, Assistant Examiner. 

9. A LOCK HAVING A BUSHING MOUNTED NON-ROTATIVELY IN A MOUNTING BASE, A COLLAR FITTED AROUND THE BUSHING AND CLAMPED AGAINST THE BACK OF THE BASE, A NUT ARRANGED ON THE BUSHING FOR CLAMPINGG THE COLLAR, A LOCK HOUSING MOUNTED BEHIND THE NUT, FASTENING MEANS ENTERING THE NUT AND ATTACHING THE LOCK HOUSNG THERETO, SAID FASTENING MEANS ENGAGING AND SECURING THE COLLAR AT SELECTED POINTS TO POSITION THE LOCK, A ROTATABLE LATCH PLATE CONFINED BE- 